Electric-trolley head.



No. 808,139. PATENTED DEC. 26, 1905. J. T. CHERRY & E. -H. CLIVE.

ELECTRIC TROLLEY HEAD.

APPLICATION FILED MAR. 2a, 1905.

2 SHEETS-SHEET 1.

No. 808,139. PATENTED DEC. 26, 1905. J. T. CHERRY & E. H. OLIVE.

ELECTRIC TROLLBY HEAD;

APPLICATION FILED MAR.28, 1905.

Z SHEETS-SHEET 2.

riv Z." f @A/ n a e aw W @M m w UNTTED STATES PATENT OFTTOE.

JOHN THOMAS CHERRY AND EDWARD HENRY OLIVE, OF PLYMOUTH, ENGLAND.

ELECTRlC-TROLLEY HEAD.

Specification of Letters Patent.

Patented Dec. 26, 1905.

Application filed March 28, 1905. Serial No. 252,465

To all whom, it may concern.-

Be it known that we, JOHN THOMAS CHERRY and EDWARD HENRY OLIVE, subjectsof the King of Great Britain, residing at Plymouth, county of Devon,England, have invented certain new and useful Improvements in Electric-Trolley Heads, of which the following is a specification, such as willenable those skilled in the art to which it appertains to make and usethe same.

This invention relates to trolley devices for trolley-cars; and theobject thereof is to provide an improved electric-trolley head adaptedto be connected with the ordinary trolley-arm in the usual or anydesired manner and by means of which the trolley-wheel may be conveniently and easily placed in contact with the trolley wire or conductor atall times or whenever said parts have by accident or otherwise becomedisconnected.

This invention is an improvement on that described and claimed in UnitedStates Patent granted to us March 29, 1904, No. 755,999, and is fullydisclosed in the following specification, of which the accompanyingdrawings form a part, in which Figure 1 is a sectional side View of ourim--- proved electric-trolley head, and Fig. 2 a partial sectional viewat right angles to the section shown in Fig. 1.

In the practice of our invention we provide a support comprising asocket member a, which is tubular in form or provided with alongitudinal bore (0 which in the form of construction shown is enlargedat the upper end, as shown at (0 but this enlargement may or may not beemployed, and said socket memher is provided at or near its lower endwith atransverse partition a, and said socket member is also connectedwith or formed integrally with a side bracket or frame a, with which inpractice the trolley-arm is connected in the usual or any desiredmanner. lVe also provide a fork-shaped frame 6, which in connection withthe operative parts mounted therein constitutes the trolley-head properand which comprises a cross-head bottom portion 6 and upwardly-directedside members 6 the central portions of which are substantially cupshapedin cross-section or of any other preferred form, and said side members bare provided slightly above the transverse center of the fork-shapedframe with inwardly-directed axle boxes or bearings 6 in which thetrolleywheel axle c is mounted.

Mounted centrally on the axle c is the trolley-wheel (Z, which in theform of construction shown is provided with a hub (Z which fits betweenthe axle boxes or bearings 6* and the ends of which in the form ofconstruction shown are provided with annular flanges, ribs, collars, orsimilar devices (Z and mounted on the axle boxes or bearings 6 arecopper washers e, which bear on the flanges, ribs, collars, or similardevices 0Z and which are provided with downwardly-directed spring-arms 6secured to the opposite sides of the fork-shaped. frame 7), as shown at0 and these washers aid in conducting the electric current through theseparate parts of the trolley-head.

The trolley-wheel (Z in the form of construction shown is provided witha deep annular groove formed by outwardly flared side flanges 6Z on theouter sides of which are annular grooves (Z and the top portions of thesides 6 of the fork-shaped frame 6 are provided with inwardly-directedbearings at f, which enter the grooves (Z and are adapted to moveloosely and freely therein, and to or in which are pivoted wire-findersf which are shown in their normal positions in full lines in Figs. 1 and2 and in their operative position in dotted lines in said figures, andin their normal positions the wire-finders f occupy slots f in the topportions of the sides of the fork-shaped frame 6.

The upper end of the socket member a fits in an annular groove in thebottom of the head 6 of the fork-shaped frame 6, and said head isprovided with a downwardly-directed shank g, which fits in the socketmember a, and said fork-shaped frame 6 rests on and is rotatable on thesocket member a, and the shank g rotates in said socket member, and saidshank is provided in the form of construction shown with an annulargroove g and passing through the socket member a is a pin 9 which alsopasses through said groove, and by means of this construction thefork-shaped frame and shank g are held in connection with the socketmember a, and the groove in the form of construction shown is of suchvertical width as to permit of a slight vertical movement of thetrolley-head member, consisting of the fork-shaped frame 6 and the shankg connected therewith.

Passing vertically through the shank g and into the trolley-head memberis a shaft or rod it, provided at its upper end with a beveled head 72?,between which and the crosshead b of the fork-shaped frame 6 is a springif, which holds the rod or shaft /t in its highest position, as shown inFig. 1, and in the top portion of the cross-head b of the fork-shapedframe Z) is a transverse slot or opening if, which opens outwardly atIt" through the opposite side portions L of the fork-shaped frame 6, andpivoted in the opposite side portions of the slot or opening it at theopposite sides of the rod or shaft it or the head thereof, as shown atit, are rock-levers F, the outer ends of which are pivoted at it toupwardly-directed and vertically-movable link members i, which arepivoted at their upper ends, as shown at 2' to longitudinal ribs on thebottom of the wirefinders f this connection being made slightly belowand outwardly of the pivotal supports of said wire-finders atf, and thelink members '2' are provided in their inner faces with verticalrecesses i as shown in Fig. 2, to form a space for the hub of thetrolley-wheel (Z, and the rock-levers 7&7 are provided at their innerends with beveled heads it, in connection with which the head 71,2 ofthe shaft or rod it operates. v

In practice the rope, cord, or similar device by which the trolley-armis manipulated is connected with the lower end of the rod or shaft it at1', this connection being made in such manner as to insulate said rope,cord, or

other device, and it is evident that when the rod or shaft la is pulleddownwardly against the operation of the spring 72 the head there of willoperate in connection with the rocklevers 7&7 to throw the link members21 upwardly, and said link members will operate to throw thewire-finders f upwardly into the position shown in dotted lines in Fig.1, and the said wire-finders will remain in this position as long as apull is exerted on the shaft or rod 74, and by manipulating thetrolleyhead and trolley-arm by means of the rope, cord, or similardevice connected with the shaft or rod it the trolley-wire or conductormay be easily found and guided into the groove in the wheel (Z, and whenthe pull on the rod or shaft it is released the operative parts of thetrol ley-head will assume the position shown in full lines in Fig. 1. Itwill be understood that not only the wire-finders f may be thus operatedwhenever it is desired to connect the wheel (Z with the trolley-wire orconductor, but the trolley-arm with which the trolley-head is connectedand by which the trolley-head is connected with a car is also operatedby said rope, cord, or other device.

This device is exceedingly simple in construetion and will not get outof order, so as to frequently need repair, and by means thereof thetrolley-head or the trolley-wheel thereof may be quickly and easilyplaced in connection with the trolley-wire or conductor wheneverdesired, whether in the day-time or night-time, simply by manipulatingthe ordinary rope, cord, or other device by which the trolley-arm isoperated and which in practice is connected with the rod or shaft it.

Having fully described our invention, what we claim as new, and desireto secu re by Letters Patent, is

1. In a trolley device, a socket member adapted to be connected with atrolley-arm, a fork-shaped frame mounted on said socket member androtatable thereon, a trolley-wheel mounted between the opposite sides ofthe fork-shaped frame, a spring-supported rod passing vertically throughthe socket member and provided with a head in the bottom portion of thefork-shaped frame, rock-levers pivoted at the opposite sides of the headof the rod and adapted to be operated thereby, vertically-arranged linkmembers pivoted to the outer end of said levers, and wire-finderspivoted at the top of the opposite sides of the fork-shaped frame, saidlink members being also pivoted to said wire-finders, substantially asshown and described.

2. In a trolley device, a socket member designed to be connected with atrolley-arm, a

fork-shaped frame mounted on said socket member and rotatable thereon,atrolley-wheel mounted between the sides of the fork-shaped frame, aspring-supported rod passing vertically through the socket member andinto the bottom of said frame and the upper end of which is providedwith a head, wire-finders pivoted in the top of the side portions of thefork-shaped frame, levers pivoted in the bottom of the fork-shaped frameand adapted to be operated by the head of said rod and link devices inoperative connection with said levers and said wire-finders,substantially as shown and described.

3. In a trolley device, a socket member, a fork-shaped frame mountedthereon and provided with a shank which enters said member, said framebeing rotatable on said socket member, a trolley-wheel mounted betweenthe sides of the fork-shaped frame, a verticallymovable spring-supportedrod passing upwardly through the socket member and through the shank ofthe fork-shaped frame into the bottom portion of said frame, wirefinderspivoted to the top of the opposite side portions of the fork-shapedframe, levers pivoted in the bottom of the fork-shaped frame IIC andadapted to be operated by the downward movement of said rod and devicesin operative connection with said levers and said wirefinders wherebythe downward movement of said rod will raise said Wire-finders,substantially as shown and described.

In testimony that we claim the foregoing as our invention we have signedour names, in

presence of the subscribing witnesses, this 13th day of March, 1905.

JOHN THOMAS CHERRY. EDWARD HENRY CLIVE.

Witn esses:

ELI PILLAS, ANITA STRONG.

